o1
LegacyTop-tierOpenAI's original frontier reasoning model with deep thinking.
Designed to reason carefully before responding, strong at complex science and math. Superseded by o3 and o4-mini.
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o1 by OpenAI has a Capability Index of 75.2, making it comparable to the field average. It ranks #42 out of 92 models on the idapt capability leaderboard. o1 is very affordable at $15.00/M tokens input and $60.00/M tokens output. Cached input reads are priced at $7.50/M tokens, making repeated context cheaper. The model supports vision/image input, extended reasoning, a 200K context window.
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Mistral Small 4vs o1Frequently Asked Questions about o1▼
When was o1 released?
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o1 was released on December 17, 2024.
Who created o1?
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o1 was created by OpenAI.
How capable is o1?
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o1 has a Capability Index of 75.2/100, making it comparable to the field average. It ranks #42 out of 92 models.
How much does o1 cost?
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o1 costs $15.00/M input tokens and $60.00/M output tokens.
What is o1 API pricing?
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The o1 API is priced at $15.00 per million input tokens and $60.00 per million output tokens. You can access o1 through idapt.app alongside 200+ other AI models in one workspace.
Is o1 a reasoning model?
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Yes, o1 is a reasoning model. It can think step-by-step through complex problems before providing an answer, often yielding better results on difficult tasks like math, coding, and multi-step logic.
Does o1 support image or vision input?
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Yes, o1 supports vision/image input. You can share images in your conversation and the model will analyze and respond based on their content.
Does o1 support audio?
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No, o1 does not support audio input.
What is the context window of o1?
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o1 has a context window of 200K tokens, meaning it can process approximately 150,000 words of context at once.
Is o1 open source?
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o1 is a proprietary model developed by OpenAI. The model weights and training data are not publicly available.
What is o1 good at?
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Based on benchmark data, o1 excels at: mathematical problem solving, visual analysis and image understanding. It is OpenAI's capable model suitable for a wide range of tasks.
Where can I use o1?
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You can chat with o1 on idapt.app — no separate API key required. idapt is an AI workspace with 200+ models, agents, computers, and tasks. You can also access o1 through OpenAI's own API or platform.